protozoan

Rolling back seems to be the official way, see this announcement thread for reference:

https://www.sidefx.com/forum/topic/102904/ [www.sidefx.com]

To me it looks like you're using an older Nuke color config. Check the one that says ..aces-v1.3_ocio-v2.1 in the dropdown of your project color settings.. then the Nuke viewer config should also say the same as mplay: ..SDR video (sRG - Display) instead of sRGB(ACES).

See if that improves it.

Submit as 'Bug' and set the category to 'documentation'.